Age-related, progressive neuropathology including plaques and tangles. Extracellular Aβ deposits by 6 months in frontal cortex, more extensive by 12 months. No tau pathology at 6 months, but evident at 12 months. Synaptic dysfunction, including LTP deficits, prior to plaques and tangles.
Cognitive impairment by 4 months. Impairments first manifest as a retention/retrieval deficit and not as a learning deficit, and occur prior to plaques and tangles. Deficits in both spatial and contextual based paradigms. Clearance of intraneuronal Aβ by immunotherapy rescues the early cognitive deficits in a hippocampal-dependent task.
Amyloid pathology starting at 2 months, including amyloid plaques. Accumulation of intraneuronal Aβ before amyloid deposition. Gliosis and synapse degeneration. Neuron loss in cortical layer 5 and subiculum. No neurofibrillary tangles.
Age-dependent memory deficits including spatial memory, stress-related memory, and memory stablization. Motor phenotype.
Plaques start in the subiculum, spreading to the frontal cortex as dense and diffuse aggregates. Prominent amyloid deposits in brain vessels after 15 months. Microbleeds. Amyloid-associated inflammation. CSF Aβ42/Aβ40 ratio decreases from 15 months. Dystrophic neurites containing hyperphosphorylated tau, but no tangle pathology.
From the age of 6 months, spatial and non-spatial orientation and memory deficits by Morris water maze. Impaired associative learning. Increased agitation/anxiety from 8 weeks. Reduced ambulation, especially with age. Hyperactivity and aggression.
Yes
Originally generated on FVB/N background; available at reMYND as C57BL/6xFVB/N
Tg(Thy1-APPLon)2Vln/0
Increased mortality (72% by day 180). Increased incidence of seizures.
Available through the KU Leuven Research and Development Office; the CRO reMYND offers research services with this line.
Soluble, oligomeric Aβ at 2 months and increases with age. Amyloid plaques at 6-9 months, earlier than APP(V717I) single transgenics. Plaques start in the subiculum and spread to the frontal cortex. Amyloid-associated inflammation. CAA pathology at 8 months; microbleeds at 12-15 months. Dystropic neurites containing hyperphosphorylated tau, but no tangle pathology.
From the age of 5 months, spatial and non-spatial orientation and memory deficits by Morris Water Maze. Impaired associative learning, hyperactivity, anxiety, and aggression.
Yes
Originally generated on FVB/N background; available at reMYND as C57BL/6xFVB/N
Tg(Thy1-APPLon)2Vln/0; Tg(Thy1-PSEN1*A246E)2Vln/0
The CRO reMYND offers research services with this line.
Pathologic hyperphosphorylation and conformational change of parenchymal tau in brain tissues starting at 7 months. Tangle-like pathology is mainly observed in the brain stem and spinal cord, and to a lesser extent in the midbrain and cerebral cortex. Age-dependent increase in total tau in CSF.
Age-associated deficits in a passive avoidance task (starting at 5 months) and a novel object recognition task (starting at 9 months). At a young age (~2 months) outperforms wild-type littermates in object recognition memory. Progressive motor impairment and reduced activity, accompanied by increased clasping of hind and then forelimbs around seven months.
Yes
FVB/N
Thy1-hTau.P301L
Premature death around 8-12 months, preceded by weight loss, hyperkyphosis, reduced activity, and upper airway dysfunction.
The CRO reMYND offers research services with this line.
Neuron loss and brain atrophy by eight to 12 months, especially in the hippocampus and spreading to the neocortex and entorhinal cortex. Neurofibrillary tangles in the neocortex, amygdala, hippocampus, brain stem, and spinal cord. Neuroinflammation with microgliosis and astrocytosis.
Impairments in spatial memory and learning ability in Morris water maze. Paralysis at seven to 10 months associated with a hunched-back posture followed by feeding difficulties. About 80 percent mortality by 12 months with median survival of about nine months.
Yes
(C57BL/6 x C3H)F1
B6;C3-Tg(Prnp-MAPT*P301S)PS19Vle/J
Clasping and limb retraction when lifted by the tail at three months, followed by limb weakness and brain atrophy. Homozygous females do not mate.
Rapid, early plaque development, with thioflavin S-positive amyloid deposits at 3 months; dense cored plaques and neuritic pathology by 5 months. Plaques become more extensive with age. More Aβ42 than Aβ40. Activated microglia appear concurrently with plaques, whereas GFAP+ astrocytes follow later, about 13-14 weeks. Dystrophic neurites at 5 months .
Early impairment in acquisition and learning reversal in the reference memory version of the Morris water maze by 3 months. Cognitive deficits in the step-down inhibitory avoidance test at 7 months but not at 2 months. Similar to wild-type in motility, exploratory activity, or neuromuscular function at 7 months as evaluated by the rotarod, hole board and grip strength tests.
Yes
Hybrid C3H/He-C57BL/6
Cholinergic dysfunction: decrease in the number of cholinergic neurons in the nucleus basalis magnocellularis by 7 months as measured by ChAT immunoreactivity. Enhanced auditory startle response and modest reduction in prepulse inhibition.
Available through the Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto